the last known images of him on monday on this surveillance tape at a san diego dumpster, obtained by cnn. every possible sighting sparking a massive police response. like, late sunday at this l.a. county lowe's. dorner has declared war on police, calling the lapd corrupt and racist. he claims he was blacklisted and unjustly fired after accusing a fellow officer of using unnecessary force. in a lengthy manifesto, he lays out a list of 50 high-value targets. the list includes police and their families. >> to be targeted because of what you are. to have your family targeted because they're related to you, that is absolutely terrifying. >> reporter: the city is on edge. this week, a twist. we learned that dorner has some flight training. the tsa has airports here on alert. george? >> thank you, pierre. >>> let's turn to a cyberbullying scandal making headlines. a former green bay packers cheerleader is speaking out. abc's john muller is here with her story. >> reporter: the viral video this former cheerleader crafted just may be the blueprint response to cyberbullying. she turned the tables